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-rw-r--r--crawl-ref/source/dungeon.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/crawl-ref/source/dungeon.cc b/crawl-ref/source/dungeon.cc
index 23daf0d16c..d81c0c96a8 100644
--- a/crawl-ref/source/dungeon.cc
+++ b/crawl-ref/source/dungeon.cc
@@ -1537,7 +1537,7 @@ static builder_rc_type builder_by_type(int level_number, char level_type)
static void portal_vault_level(int level_number)
{
std::string trimmed_name = trimmed_string(you.level_type_name);
- ASSERT(trimmed_name.c_str() != "");
+ ASSERT(!trimmed_name.empty());
const char* level_name = trimmed_name.c_str();